Looking for the most "primitive" organism(s) on Earth today: the state of the art.

@article{Forterre1995LookingFT,
  title={Looking for the most "primitive" organism(s) on Earth today: the state of the art.},
  author={Patrick Forterre},
  journal={Planetary and space science},
  year={1995},
  volume={43 1-2},
  pages={167-77}
}
Molecular phylogenetic studies have revealed a tripartite division of the living world into two procaryotic groups, Bacteria and Archaea, and one eucaryotic group, Eucarya. Which group is the most "primitive"? Which groups are sister? The answer to these questions would help to delineate the characters of the last common ancestor to all living beings, as a first step to reconstruct the earliest periods of biological evolution on Earth. The current "Procaryotic dogma" claims that procaryotes are… CONTINUE READING